The achievement of a new generation of lithium-ion battery, suitable for a continuously growing consumer electronic and sustainable electric vehicle markets, requires the development of new, low-cost, and highly performing materials. Herein, we propose a new and efficient lithium-ion battery obtained by coupling exfoliated graphite/graphene nanosheets (EGNs) anode and high-voltage, spinel-structure cathode. The anode shows a capacity exceeding by 40% that ascribed to commercial graphite in lithium half-cell, at very high C-rate, due to its particular structure and morphology as demonstrated by X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The Li-ion battery reveals excellent efficiency and cycle life, extending up to 150 cycles, as well as an estimated practical energy density of about 260 Wh kg-1, that is, a value well exceeding the one associated with the present-state Li-ion battery.
High voltage li-ion battery using exfoliated graphite/graphene nanosheets anode / Agostini, Marco; Brutti, Sergio; Hassoun, Jusef. - In: ACS APPLIED MATERIALS & INTERFACES. - ISSN 1944-8244. - 8:17(2016), pp. 10850-10857. [10.1021/acsami.6b01407]
High voltage li-ion battery using exfoliated graphite/graphene nanosheets anode
Agostini, Marco;Brutti, Sergio;Hassoun, Jusef
2016
Abstract
The achievement of a new generation of lithium-ion battery, suitable for a continuously growing consumer electronic and sustainable electric vehicle markets, requires the development of new, low-cost, and highly performing materials. Herein, we propose a new and efficient lithium-ion battery obtained by coupling exfoliated graphite/graphene nanosheets (EGNs) anode and high-voltage, spinel-structure cathode. The anode shows a capacity exceeding by 40% that ascribed to commercial graphite in lithium half-cell, at very high C-rate, due to its particular structure and morphology as demonstrated by X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The Li-ion battery reveals excellent efficiency and cycle life, extending up to 150 cycles, as well as an estimated practical energy density of about 260 Wh kg-1, that is, a value well exceeding the one associated with the present-state Li-ion battery.File | Dimensione | Formato | |
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